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Final Report of Modeling of CWM Droplet Combustion

Description: The objective of the present study was to develop a one-dimensional, unsteady state model for coal-water mixture droplet combustion, and to compare the characteristic times for the various processes, such as water vaporization, devolatilization and char oxidation with available experimental data. A water film surrounding a spherical coal particle is considered to undergo vaporization by heat transfer from the hot air. After the water vaporization is complete, devolatilization begins. This proce… more
Date: October 1, 1983
Creator: Pandalai, Krish; Aggarwal, Suresh & Sirignano, William
Partner: UNT Libraries Government Documents Department
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Application of the graphical unitary group approach to the energy second derivative for CI wave functions via the coupled perturbed CI equations

Description: Analytic derivatives of the potential energy for Self-Consistent-Field (SCF) wave functions have been developed in recent years and found to be useful tools. The first derivative for configuration interaction (CI) wave functions is also available. This work details the extension of analytic methods to energy second derivatives for CI wave functions. The principal extension required for second derivatives is evaluation of the first order change in the CI wave function with respect to a nuclear p… more
Date: October 1, 1983
Creator: Fox, D.J.
Partner: UNT Libraries Government Documents Department
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Measurement of sin/sup 2/theta/sub w/ in Semileptonic nu Fe and anti nu Fe Interactions

Description: We report results from neutral current scattering of muon neutrinos and antineutrinos on iron nuclei by the CCFRR experiment at Fermilab. Our objective is the measurement of sin/sup 2/theta/sub w/ from inclusive semileptonic neutrino-nucleon interactions. Such a measurement, even though it is subject to more corrections than the analogous measurement in neutrino-electron scattering (e.g. due to the presence of a strange quark sea in the nucleon), has a high degree of statistical accuracy and ma… more
Date: October 1983
Creator: Blair, R. E.; MacFarlane, D. B.; Messner, R. L.; Novikoff, D. B.; Purohit, M. V.; Merritt, F. S. et al.
Partner: UNT Libraries Government Documents Department
open access

Second-law efficiency of solar-thermal cavity receivers

Description: Properly quantified performance of a solar-thermal cavity receiver must not only account for the energy gains and losses as dictated by the First Law of thermodynamics, but it must also account for the quality of that energy. However, energy quality can only be determined from the Second Law. In this paper an equation for the Second-Law efficiency of a cavity receiver is derived from the definition of available energy or availability (occassionally called exergy), which is a thermodynamic prope… more
Date: October 1, 1983
Creator: Moynihan, P. I.
Partner: UNT Libraries Government Documents Department
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Volatile production during preignition heating. Final technical report, 15 September 1980-30 September 1982

Description: Pulverized coal particles, in a flowing inert nitrogen stream, have been heated by high power Carbon Dioxide Laser. The consequence of such an irradiation have proved to be both novel and surprising as a result of the rapid quenching of primary coal products. It ahs been found that the gas phase yield from such heating (typically, temperatures in excess of 1400 K at rates approx. 2 x 10/sup 5/ K/s) is very small (< 0.2 percent of coal carbon and hydrogen). Analysis of the solid residue has show… more
Date: October 1, 1983
Creator: Ballantyne, A.; Chou, H.; Flusberg, A.; Neoh, K.; Orozco, N. & Stickler, D.
Partner: UNT Libraries Government Documents Department
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Studies involving high temperature desulfurization/regeneration reactions of metal oxides for fuel cell development. Final report

Description: Research conducted at Giner, Inc. during 1981 to 1983 under the present contract has been a continuation of the investigation of a high temperature regenerable desulfurization process capable of reducing the sulfur content in coal gases from 200 ppM to 1 ppM. The overall objective has been the integration of a coal gasifier with a molten carbonate fuel cell, which requires that the sulfur content be below 1 ppM. Commercially available low temperature processes incur an excessive energy penalty.… more
Date: October 1, 1983
Creator: Jalan, V.
Partner: UNT Libraries Government Documents Department
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Blanket comparison and selection study. Volume II

Description: This volume contains extensive data for the following chapters: (1) solid breeder tritium recovery, (2) solid breeder blanket designs, (3) alternate blanket concept screening, and (4) safety analysis. The following appendices are also included: (1) blanket design guidelines, (2) power conversion systems, (3) helium-cooled, vanadium alloy structure blanket design, (4) high wall loading study, and (5) molten salt safety studies. (MOW)
Date: October 1, 1983
Partner: UNT Libraries Government Documents Department
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Study of heavy quark production with the Mark II at PEP

Description: The methods adopted by the Mark II collaboration to study heavy quark production at PEP are described. Two complementary techniques are used: D* tagging using the decay chain D*/sup +/. D/sup 0/..pi../sup +/, D/sup 0/ ..-->.. K/sup -/..pi../sup +/, and inclusive lepton tagging using the characteristic p/sub T/ distributions to distinguish contributions from b and c quarks. These techniques are used to derive information about heavy quark fragmentation and about the weak coupling of heavy quarks. more
Date: October 1, 1983
Creator: Abrams, G.; Amidei, D.; Baden, A.; de la Vaissiere, C.; Gidal, G.; Gold, M. et al.
Partner: UNT Libraries Government Documents Department
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Separation and Characterization of Coal Derived Components. Quarterly Report, July 1-September 30, 1983

Description: The field-ionization mass spectral hydrocarbon data from F-45 (Wyodak coal-derived SRC) and F-51 (Kentucky 9/14 coal-derived SRC) were recalculated so the various hydrocarbon fractions could be compared directly on a weight percent basis. A computer program was developed which allows the field-ionization mass spectral hydrocarbon data to be compared in a three dimensional fashion. This approach provides for a rapid general comparson of all the field-ionization hydrocarbon data. The solubility o… more
Date: October 17, 1983
Creator: Hurtubise, R. J. & Silver, H. F.
Partner: UNT Libraries Government Documents Department
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Flow visualizations, velocity measurements, and surface convection measurements in simulated 20. 8-cm Nova box amplifier cavities

Description: Reported are fluid mechanics experiments performed in models of the 20.8-cm Nova amplifier lamp and disk cavities. Lamp cavity nitrogen flows are shown, by both flow visualization and velocity measurements, to be acceptably uniform and parallel to the flashlamps. In contrast, the nitrogen flows in the disk cavity are shown to be disordered. Even though disk cavity flows are disordered, the simplest of three proposed nitrogen introduction systems for the disk cavity was found to be acceptable ba… more
Date: October 31, 1983
Creator: Julien, J.L. & Molishever, E.L.
Partner: UNT Libraries Government Documents Department
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Tandem mirror technology demonstration facility

Description: This report describes a facility for generating engineering data on the nuclear technologies needed to build an engineering test reactor (ETR). The facility, based on a tandem mirror operating in the Kelley mode, could be used to produce a high neutron flux (1.4 MW/M/sup 2/) on an 8-m/sup 2/ test area for testing fusion blankets. Runs of more than 100 h, with an average availability of 30%, would produce a fluence of 5 mW/yr/m/sup 2/ and give the necessary experience for successful operation of… more
Date: October 1, 1983
Partner: UNT Libraries Government Documents Department
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Comparison of methods of producing very highly stripped uranium beams

Description: A comparison is made between the production of high intensity beams of helium-like uranium ions, U/sup 90 +/, by conventional and exotic ion sources, and by the foil stripping of highly accelerated ions output from the Bevalac. The parameter requirements are specified and compared to the parameters achievable by present day ion source technology. The EBIS (Electron Beam Ion Source) comes closest to satisfying the necessary parameters, and this possibility is considered in some detail. We conclu… more
Date: October 1, 1983
Creator: Brown, I.G.
Partner: UNT Libraries Government Documents Department
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Irradiation effects on the storage and disposal of radwaste containing organic ion-exchange media. [3 functional forms of resin - sulfonic acid cation exchanger, quarternary ammonium anion exchanger and mixed bed combination of the two]

Description: Polystyrene-divinylbenzene (PS-DVB) based ion exchangers are commonly used in water demineralization or decontamination operations at nuclear facilities. Self-irradiation from sorbed radionuclides may affect the properties of radwaste containing these ion-exchange media. The effects of external irradiation on anion, cation, and mixed bed PS-DVB ion exchangers have been investigated under conditions relevant to radwaste storage and disposal. Three effects are emphasized in the present report: (1… more
Date: October 1, 1983
Creator: Swyler, K. J.; Dodge, C. J. & Dayal, R.
Partner: UNT Libraries Government Documents Department
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Wilsonville wastewater sampling program. Final report

Description: As part of its contrast to design, build and operate the SRC-1 Demonstration Plant in cooperation with the US Department of Energy (DOE), International Coal Refining Company (ICRC) was required to collect and evaluate data related to wastewater streams and wastewater treatment procedures at the SRC-1 Pilot Plant facility. The pilot plant is located at Wilsonville, Alabama and is operated by Catalytic, Inc. under the direction of Southern Company Services. The plant is funded in part by the Elec… more
Date: October 1, 1983
Partner: UNT Libraries Government Documents Department
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Carbon, oxygen and their interaction with intrinsic point defects in solar silicon ribbon material. Annual report, September 1982-September 1983

Description: This report first provides some background information on intrinsic point defects, and on carbon and oxygen in silicon in so far as it may be relevant for the efficiency of solar cells fabricated from EFG ribbon material. We discuss the co-precipitation of carbon and oxygen and especially of carbon and silicon self interstitials. A simple model for the electrical activity of carbon-self-interstitial agglomerates is presented. We assume that the self-interstitial content of these agglomerates de… more
Date: October 1, 1983
Creator: Goesele, U. & Ast, D.G.
Partner: UNT Libraries Government Documents Department
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Physics and chemistry of E-beam stack gas processing. Final report, 20 September 1982-14 January 1984

Description: The purpose of this program is to investigate some of the basic physics and chemistry of the electron beam induced NO/sub x/ and SO/sub x/ removal process. The program involves both kinetic modelling and diagnostic development. The development of an adequate kinetic model is necessary in order to scale the laboratory results, which are currently available, to process conditions closer to those that will be encountered at full scale operation. It is also necessary in order to place the laborator… more
Date: October 1, 1983
Creator: Slater, R.
Partner: UNT Libraries Government Documents Department
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Side-by-Side Comparisons of Evacuated Compound Parabolic Concentrator and Flat Plate Solar Collector Systems

Description: Three liquid-based solar heating systems employing different types of solar collectors were tested side by side near Chicago, Illinois for one year. The three different types of collectors were: (1) a flat plate collector with a black-chrome coated absorber plate and one low-iron glass cover; (2) an evacuated-tube compound parabolic concentrator (CPC) with a concentration ratio of 1.1, oriented with tubes and troughs along a north-south axis; and (3) an evacuated-tube CPC collector with a conce… more
Date: October 1983
Creator: McGarity, Arthur E.; Allen, John W. & Schertz, William W.
Partner: UNT Libraries Government Documents Department
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The TOEPLITZ Package Users' Guide

Description: The TOEPLITZ package is a collection of Fortran subroutines for the numerical solution of systems of linear equations with coefficient matrices of Toeplitz or circulant form. This report provides a description of the algorithms and software in the package and includes program listings.
Date: October 1983
Creator: Arushanian, O. B.; Samarin, M. K.; Voevodin, V. V.; Tyrtyshnikov, E. E.; Garbow, B. S.; Boyle, J. M. et al.
Partner: UNT Libraries Government Documents Department
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Time-Dependent Study of Radiation Trapping by Time-Delayed Two-Photon Absorption

Description: The transport of resonance radiation through an optically thick vapor of Sr atoms is studied. A pulsed dye laser tuned to the 461 nm resonance line excites a narrow (approx. 60 ..mu..m diam) column of Sr atoms along the axis of a cylindrical oven containing Sr vapor and Ar buffer gas. After a delay of less than or equal to 80 ns, a second dye laser excites the atom from the first excited state (5s5p) to a higher excited state (5s7s). The fluorescence from this latter transition is monitored as … more
Date: October 1, 1983
Creator: Molander, W.; Belsley, M.; Streater, A. & Burnett, K.
Partner: UNT Libraries Government Documents Department
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New magic angle bumps and magic translation bumps

Description: SLC beams of opposite charge can be transversely deflected in the same direction by RF fields in the accelerating cavities caused by girder tilts, coupler-asymmetries, or manufacturing errors. A symmetric deflection can be corrected by a magic angle bump if the deflection is located adjacent to one of the linac quadrupoles. However, if the deflection is located between quadrupoles, two magic angle bumps or a magic angle bump and a magic translation bump are needed for the correction. Several ex… more
Date: October 28, 1983
Creator: Seeman, J.
Partner: UNT Libraries Government Documents Department
open access

Heat transfer in freeboard region of fluidized beds

Description: This research involved the study of heat transfer and fluid mechanic characteristics around a horizontal tube in the freeboard region of fluidized beds. Heat transfer coefficients were experimetnally measured for different bed temperatures, particle sizes, gas flow rates, and tube elevations in the freeboard region of air fluidized beds at atmospheric pressure. Local heat transfer coefficients were found to vary significantly with angular position around the tube. Average heat transfer coeffici… more
Date: October 1, 1983
Creator: Biyikli, S.; Tuzla, K. & Chen, J. C.
Partner: UNT Libraries Government Documents Department
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Fragmentation of quarks and gluons, tests of QCD in e/sup +/e/sup -/ annihilation

Description: This report covers the topics of fragmentation of quarks and gluons and tests of QCD in e/sup +/e/sup -/ annihilation and is a summary of a rapporteur talk given at the 1983 International Symposium on Lepton and Photon Interactions at High Energies. New data on the general characteristics of the e/sup +/e/sup -/ environment at the UPSILON and at PETRA and PEP are discussed. For the first time there is a lot of data on resonance production - eta, K*, rho, phi, ..xi... There is more data on c qua… more
Date: October 1, 1983
Creator: Dorfan, J.
Partner: UNT Libraries Government Documents Department
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Economic and engineering analysis of a selected full-scale trommel screen operation

Description: The trommel screen located at the Baltimore County municipal solid waste processing plant operated by Teledyne National was evaluated for a 1-year period. This trommel is used to remove noncombustibles from refuse derived fuel (RDF) and thereby reduce ash content and increase heating value of the RDF. The trommel is 8 m in length, 3.7 m in diameter, has 32-mm holes, and can be operated at 6 to 12 rpm. Economic operating and maintenance data were collected for the period November 1980 through Oc… more
Date: October 1, 1983
Creator: Hennon, G. J.; Fiscus, D. E.; Glaub, J. C. & Savage, G. M.
Partner: UNT Libraries Government Documents Department
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Two-phase fluid flow through nozzles and abrupt enlargements

Description: The problem of a critical flow of two-phase mixture, boosted to a selected stagnation state and allowed to flow through a nozzle orifice into a long straight tube, is treated generically and analytically, making use of the basic laws of fluid mechanics and thermodynamics. Specific calculations have been performed using R-114 as the flowing medium. An attempt is made to identify and describe all possible flow conditions in and downstream of the nozzle for all possible stagnation conditions. (LEW) more
Date: October 1, 1983
Creator: Olia, H.; Maeder, P. F.; DiPippo, R. & Dickinson, D. A.
Partner: UNT Libraries Government Documents Department
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